https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef1733en.pdf
https://www.transparency.de/fileadmin/Redaktion/Publikationen/2019/19-09-01_TI-D_Gutachten_Momsen.pdf
http://www.kcl.ac.uk/sspp/policy-institute/CMCP/UK-media-coverage-of-the-2016-EU-Referendum-campaign.pdf
https://www.brookings.edu/articles/in-search-of-new-ideas-for-africas-recovery-sports-and-creative-industries-as-game-changers/